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L. L. KNOX WATER COOLED VALVE 0R DAMPER Mar. 6, 1923.

2 sheets-sheet 1 Original Filed July G, '1914 I INVENTOR Zwei., '.z Mw

2 9 1 6, r.. a M

L. L. KNOX WATER COOLED VALVE OR DAMPER 1914 Zheets-sheet 2 Original Filed July 6,

Reissued Marg, 6, 1923.

RATION 0F NEW JERSEY.

p i u 126.15552 UNITED STATES PATENT OFFICE.

LUTHER If. KNOX, oF BELLEVUE, PENNSYLVANIA, A'ssIGNoR, BY MESNE AssyIGN- MENTS, To BLAW-xNox COMPANY, or PITTSBURGH, PENNSYLVANIA, A Conro- WATER-COOLED VALVE 0R DAMPER.

Original No. 1,142,180, dated June 8, 1915, SerialNo. 849,166, ledjuly 6, 1914.

led' December 27, 1922. Serial No. 609,343. Y f

To all whom t may concern p Be it. known that I, LUTHER L. KNOX, a citizen of the United States, residing at Bellevue, in the county of Allegheny and State of Pennsylvania, have invented a new andf useful Tater-Cooled Valve lor Damper, of which the following is a full, clear, and exact description, reference being had vto the accompanying drawings, forming vpart of this specification,` in whichV Figure 1 is a sectional elevation, partly broken away, of a valve or damper embodyf ing ymy invention.

Figure 2 is a section on the line II-II of v Figure 1.

Figure 3 is a front elevation of thev water cooled frame. f

Figure 4 is a top plan view of the same, and

Figure 5 is a sect-ion onvthe line V-V of Fi ure 3.

Iy invention has relation to water-cooled valves or dampers for use in furnace lues, and is particularly advantageous for use as a controlling valve or damper in connection with the air' and gas flues of reversing regenerator furnaces. y

The 'present invention is an improvement upon 'the valve or damper described and claimed in my pending application, Serial N o. 762,230, filed April 19, 1913.

The object of the resent invention is to provide a valve or amper of the eneral construction described and claimed 1n said application, but having certain improvements whereby the movable valve or damper member may be more effectively seated and operated. i

` Referring to the accompanying drawing, the numeral 2 designates aportion of a flue adapted to be controlled -by my im- Y proved valve or damper.

3 desi nates a frame or seating member preferab y formed of sheet metal and adapted to be set in the flue 2, as indicated in Figure 2. This frame or seatin member consists of an upper portion 3a aving an inner Walla and an outer wall 5, the two walls being separated to form` a water chamber 6 entirely -surrounding the. inner wall. The lower portion of the frame or seating member has a flue opening 7 therethrough` in line with the flue-passage 2. The

`tion 8.

9 designates the valve or damper proper. lThisis a hollow rectangular plate which is arranged to slide within the inner wall 4 of the frame or seating member and to be raised and lowered -to cover or uncover any desired portion of the flue opening 7.

vided with the front and rear aprons 10 which'4 are arranged to extend downwardly withinthe front and rear water chambers in the,I portion 3?, and thus form an eiicient seal against the escape of any of Application for reissue the rear and side` 'loV It is prodepending the flue gases around the valve. -The valve or damper) body is /preferably open at the top,

' the portions 11 which connect the aprons 10 with the valve body and the upward extensions 12 of said aprons forminga water pan at the top of said body.

The space within the inner shell 4 in which the valve or damper body slides is preferably made considerably wider (measured inf-the direction 0f the axis lof the fluev 2) than the thickness of said body, so that the latter will not only slide freely therein;

but, owing to the oblique seating' of the parts will, by gravity, maintaln an eiiclent seating against the rear posit-lon of the seating member or frame. Any suitable means may be provided for maintainlng a water circulation through the framel or seating member and thevalve or damper member.

In the drawing I have shown a. water supply pipe 13 as extending downwardly to a point near the bot-tom of the valve body where it discharges within the interlor of said body. The heated water rises into the pan at the to of the body and thence flows down to the ower end portions of the slde legs of the frame or seating member through the pipes 14 which open at their upper ends into said panthrough the portions-11. As

the water is further heated in the frame4 or I seating member, it rises until it reaches an overflow openiri at into a box or trough 16 having a disc arge 17, by means of which 6 it is carried away. In this manner an effective circulation is maintained, the, water porting flanges 1S which rest upon the top of the flue 2. The overiow box or trough 16 may be convenientlyjformed as an end extension of the upper part of the portion 20 3 of the frame or seating member.

19 indicates any suitable actuating connection for raising and lowering thevalve or damper. By seating the parts in an oblique position the valve will maintain its seat under all conditions, thus avoiding any necessity for the provision of special means for crowding the valve against the ,seating surfaces of the fra-me. This seating will be maintained since the valve will clear it- Self of deposits of tar and other carbonaceous matter carried by the iiue gases. The inclination of the valve and seating member is in such a direct-ion relatively to the flow of gases through the iiue 2 as to cause the pressureof the gases, when the valve is closed topreSs the 4valve to its seat. The

- arrow in Figure 2 indicates the direction in which the gases flow when thesvalve is closed 4 I do not desire to limit 'myself to the details of construction'and y,arrangement as herein shown and described, as various changes can be made in parts without departing from the spiritl and scope of my in- .vention as defined in the appended claims.

-A 1. A valve or damper comprising` a hollow water-cooled frame set in an oblique` position in a .Hue wall and having a flue opening through its lower. portion, and a vhollow water-cooledvalve or damper body arranged to'slide and seat fwithin said frame in an inclined position whereby the said body is held by gravity in close contact with the adjacent surface of the frame against which it bears, substantially as described.

. 2. A valve or damper comprising a hollow water-cooled frame set in an oblique position in a iiue wall and having a flue opening through its lower portion, and a f hollow water-cooled valve or damper body arranged to slide and seat within said frame 1n any d. inclined position whereby the said body isiheld' by gravity in close lcontact with the adjacent ,surface of the yframe against All the circuwhich it bears, said frame having open front and rear water chambers extending above the top of the flue and the valve or damper Vhaving depending aprons Vwhich extend within said chambers, substantially as described. y

SrA hollow valve seating member having a flue opening therethroughand comprising a casing formed with inner and outer walls, the inner wall surrounding a transverse vertical opening which extends downwardly within the casing from-the upper end thereof to form an inclosing guideway for a valve or damper, the front portion of said guideway terminating at its bottom at about the top of the flue opening and the rear portion extending downwardly below said opening, said casing having openings at its upper end to receive seating members on the valve or damper, and means for maintaining a circulation of water through said member, substantially as described. Y v 4. A valve or damper comprising a hollow body opening at its top into a water pan and having depending flanges or aprons spaced upon the body, means for introducing a cooling liquid into said body, and water pipes Opening at their upper ends into the' said water pan and extending downwardly between the aprons and the body, substantially as described.

5. A valve or damper comprising a frame member consisting of a casing formed of inner and outer walls, the inner wall'surrounding t a transverse vertical opening which extends downwardly within the casing from the upper end thereof to forman inclosing guideway, said casing also havmg a horizontal flue opening intersecting the the verticalopening, the spaces between the inner and outer walls of the casing at'its upper portion being adapted to contain. a cooling medium and having openings at lts upper end,'a hollow valve body arranged to slide in said guideway and having a water pan at its top communicating with lthe 1nterior thereof, said valve. having dependlng sealing aprons arranged to extend through the openings. at'the top of the frame into the water spaces thereof, and also having pipes communicating with this water4 pan and depending into said water spaces, sub1 stantially as described.

6.l A valve or damper comprising'a frame member consisting of a casing formed of inner and outer walls, the inner wall s urrounding a transverse verticalV opening which extends downwardly within the casing from the upper end thereof to form'anA inclosing guideway, said casing also having a horizontal Hue opening intersecting the upper endl` a hollow valve body arranged to slide in said guideway and having a water pan at its top communicating with the in.- terior thereof, said valve having depending sealing aprons arranged to extend through the openings at the top of the frame into the water spaces thereof, and also having pipes communicating with this water pan and depending into said water spaces, the frame also having an overflow opening and an overiiow receptacle adjacent to said opening substantially as described.

T. The combination with a wall having a tine opening therethrough, of a hollow frame or casing set obliquely in said wall and extending upwardlv therefrom, said frame having a fine opening therethrough and having frontand rear waterlchambers at its upper portion, one of said water chambers terminating at the top of the fine, and a hollow water-cooled valve arranged to slide and set in an inclined position within said lframe member, substantally as described.

S. A valve or damper comprising a hollow water-cooled frame set in an oblique position in a flue wall'and having a. Hue opening through its lower portion and a hollow wa.- ter-cooled valve or damper body arranged to slide and seatwithin said frame in an in- -clined position5 wherebyl the said body is held by gravity inclose contact with lthe adjacent surfacev of the frame against which it bears, said valve consisting of a hollow box having suliicient water capacity to substantially prevent warping by hot waste'gases when in use as a. valve or damper in the flue of a reversing regenerative furnace, substantially`as described. y

9. A valve or damper comprising a holhow Water-cooled frame set in an oblique position in aV flue wall and having a flue opening through its lower portion and a hollow water-cooled valve or damper body arranged to slide and seat within said frame in an inclined position, whereby the said body is held gravity in close contact with the adiacent surface of the frame against which it bears, and a liexible connection arranged to raise and lower said damper body, said connection allowing the said damper body to accommodate itself to its seat on the frame, substantiallyv as described.

10. A valve or damper comprising a hollow water-cooled frame set in an oblique position in a flue wall and having a flue opening through its lower portion, and a hollow water cooled .valve ordalnper body arranged to slide and and seat within said frame in an inclined position, whereby the said body is held b v .gravity in close contact with the adjacent surface of the frame against which it bears, said valve consisting of a hollow' box having sutlicient water capacity to substantially prevent warping by hot faste gases when in use `Aas a valve or damper in the flue of al reversing regenerative furnace, and aiexible connection for raising and lowering the valve or damper bodv`arranged to allowT it to accommodate l itself to the water-cooled seat, substantially as described.

ll. A valve or damper for use in connection with the flue system of a reversing regenerative furnace having the usual air, gas and stack fines, comprising a hollow water-cooled frame located in inclined position in `a flue and a valve arranged to slide along and seat on the said inclined fra-me, s'a-i'd valve comprising a hollow;` box structure'k and seat on the said inclined frame, said.V

valve comprising aV hollow box structure having sufiicient water capacity to substantially prevent warping by waste gases when used as al controlling valve or damper,

whereby the said valve'is maintained inclosecontact with the seating portion of the frame, and a flexible connection arranged toraise and lower the valve along its inclined seat and to allow proper seating in different positionsV thereofl substantially asldescribed.

In testimony whereof, I have hereunto set in v hand.

LUTHER L. KNUX. 

